Tei Newman-Lehman

Consulting & independent development · Current

TNL Systems

Principal

Engineering consulting and independent technology development

Piezolith vertical power delivery and microchannel cooling architecture for next-generation AI processors.Enlarge imageEnlarge Piezolith vertical power delivery and microchannel cooling architecture
Concept rendering of the Piezolith integrated vertical power-delivery and acoustofluidic diamond cooling stack · 2026

TNL Systems is my practice for engineering consulting and independent hardware development—spanning equipment design, physics and flow modeling, and taking new technical concepts from analysis into prototyping.

My primary independent focus today is Piezolith, a power-delivery and cooling concept for high-density AI processors, where I am pairing engineering models and four provisional patent filings with cleanroom prototype planning and commercialization strategy.

Piezolith: preparing to test the concept

Before spending capital in the cleanroom, I built coupled engineering and economic models to test where the physics and unit economics hold up—and I am now working with a university nanofabrication facility to plan a first physical proof-of-concept device.

Exploded isometric architecture of the 1.2 mm active interposer stack, showing acoustic isolation between the diamond cooling channels and the PZT power-conversion layer.Enlarge imageEnlarge: Exploded isometric architecture of the 1.2 mm active interposer stack.
Exploded isometric architecture of the 1.2 mm active interposer stack, showing acoustic isolation between the diamond cooling channels and the PZT power-conversion layer.

Independent consulting · 2017

An earlier mining study: choosing a mixing arrangement

For a mining operation in Nicaragua in 2017, I evaluated industrial mixing configurations to achieve uniform circulation inside an existing tank while sticking strictly to available off-the-shelf impellers.

I modeled the tank options in SOLIDWORKS and ran flow simulations comparing baffles, shaft lengths, impeller styles, and flow directions. Plotting every option on one common velocity scale made it immediately clear how adding wall baffles broke up stagnant zones and improved full-tank circulation—giving the client a straightforward, off-the-shelf equipment specification.

The client’s field mixing tank, top belt-driven agitator drive, and transfer piping on site in Nicaragua—the physical setup modeled in the SOLIDWORKS flow simulations below.Enlarge imageEnlarge: The client’s field mixing tank, top belt-driven agitator drive, and transfer piping on site in Nicaragua—the physical setup modeled in the SOLIDWORKS flow simulations below.
The client’s field mixing tank, top belt-driven agitator drive, and transfer piping on site in Nicaragua—the physical setup modeled in the SOLIDWORKS flow simulations below.

Shared velocity scale: 0–3.247 m/s

Common scale

Unchanged original velocity legend from 0 to 3.247 meters per second.
The same velocity scale makes the two simulated flow patterns comparable. Flow simulation · 2017

Experience used here

Independent hardware development · Engineering consulting · Physics & economic modeling · Intellectual-property development · SOLIDWORKS · Flow simulation · Equipment analysis

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